{"lens":{"id":"leica-m","displayName":"Leica M","manufacturer":"Leica","flangeDistanceMm":27.8,"electronicProtocol":"mechanical-only"},"body":{"id":"nikon-z","displayName":"Nikon Z","manufacturer":"Nikon","flangeDistanceMm":16,"electronicProtocol":"Nikon Z"},"compat":{"lensMountId":"leica-m","bodyMountId":"nikon-z","feasibility":"mechanical","af":"partial","is":"n/a","aperture":"manual-ring","infinityFocus":"yes","adapterExamples":["Megadap MTZ11 (motorised AF M-adapter)","Generic M-Z rings (Urth, K&F, Fotodiox)"],"caveats":["Megadap MTZ11 adds autofocus by mechanically extending the rear flange via a 4.5 mm voice-coil tube — works with any M-mount lens (Leica, Voigtländer, Zeiss ZM, 7Artisans, TT Artisan).","AF speed is leisurely by design; brilliant for static or low-motion work, not for sports / wildlife.","Plain M-Z rings (Urth, K&F, Fotodiox) are manual-focus-only and ~30% the price — sensible for tripod-based and street work where the photographer focuses by feel."],"formatNote":{"match":"match","lensFormat":"full-frame","bodyFormat":"full-frame","cropFactor":null,"message":"Lens image circle (full-frame) matches body sensor (full-frame) — no crop or vignetting concern."}}}